177,992 research outputs found
13 - Modeling the post-LGM deglaciation of the Scandinavian-Barents Sea Ice Sheet: a model intercomparison approachM. Petrini, N. Kirchner, F. Colleoni, A. Camerlenghi, M. Rebesco, R.G. Lucchi, R. Noormets, E. Forte, R.R. Colucci
No full textARCA Project - Final Conference, 11 October 2016 Rome - Poster Session - Marine Geology - Extended abstract(M. Petrini, N. Kirchner, F. Colleoni, A. Camerlenghi, M. Rebesco, R.G. Lucchi, R. Noormets, E. Forte, R.R. Colucci)</div
La radiopacità dei materiali da otturazione canalare: proposta di una nuova metodica di indagine.
No full textAppropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Quantitative Analysis
No full textThe programme aims to facilitate global and interconnected learning about
the contexts, causes and factors leading to vaccine engagement. Through the
programme, the Academy has awarded funding to seven research projects
exploring vaccine engagement in Canada, France, Germany, Italy, Japan
and the UK. The programme, which was funded by the UK’s Department for
Business, Energy and Industrial Strategy, builds on a series of statements
developed in partnership with humanities and social sciences bodies across
G7 countries. The Academy has supported another series of projects focused
on the USA and UK
Publisher correction: Spatio-temporal variability of processes across Antarctic ice-bed-ocean interfaces (vol 9, 2289, 2018)
No full textThe original version of this Article contained an error in the spelling of the author Florence Colleoni, which was incorrectly given as Florence Colloni. This has been corrected in both the PDF and HTML versions of the Article
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Two-year infant neurodevelopmental outcome after single or multiple antenatal courses of corticosteroids to prevent complications of prematurity.
No full textObjective: This study was undertaken to evaluate the effect of exposure to multiple antenatal steroid courses on short-term neonatal morbidity and 2-year infant neurodevelopmental outcome.
Study design: This was a prospective observational study of 201 preterm singleton infants who received 1 or more courses of corticosteroids to prevent complications of prematurity and weredelivered between 24 and 34 weeks’ gestation at a single institution. Neurodevelopmental outcome
of the infants was evaluated at 2 years corrected age. Logistic regression analysis was used to perform multivariate analyses of associations and trends.
Results: One hundred thirty-eight subjects (68.7%) received at least 1 complete course of betamethasone, whereas 63 (31.3%) patients were treated with dexamethasone. The prevalence of multiple steroid doses exposure was 26.8% (37/138) in betamethasone and 52.4% (33/63) in
dexamethasone group. The prevalence of infant leukomalacia, including both prolonged echogenicity and cystic leukomalacia, was 25.9% (34/131) after a complete corticosteroid course, 40% (6/15) after 1, 42.3% (12/28) after 2, and 44.4% (12/27) after more than 2 additional courses, respectively (adjusted P for trend=.011). In the same categories of steroid exposure, the corresponding prevalences of 2-year infant neurodevelopmental abnormalities were 18% (20/111), 21.4% (3/14), 29.2% (7/24), and 34.8% (8/23), respectively (adjusted P for trend=.038). Multivariate study of first grade interaction suggested that the risk of leukomalacia and 2-year infant neurodevelopmental abnormalities associated with multiple doses exposure was confined to dexamethasone. In fact, compared with betamethasone, exposure to multiple doses of dexamethasone was associated with an increased risk of leukomalacia (19/33 compared with 11/37; odds ratio [OR]=3.21, 95% CI=1.07-9.77) and overall 2-year infant neurodevelopmental abnormalities (12/28 compared with 6/35; OR=3.63, 95% CI=1.03-13.58)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
UTERINE MYOMA IN POSTMENOPAUSE: A COMPARISON BETWEEN TWO THERAPEUTIC SCHEDULES OF HRT
No full textThe aim of the present study is to evaluate the effects of two different hormonal treatment schedules on the risk of uterine myoma onset or progression. Percutaneous-oral schedule of HRT seems to affect the growth of uterine myomas more than a single oral combination of oestradiol valerate and cyproterone acetate
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